Operation controller for electronic computers



FIG. 1 is a top, front and right side perspective view of an operation controller for electronic computers showing my new design,

FIG. 2 is a front elevational view thereof,

FIG. 3 is a top plan view thereof,

FIG. 4 is a bottom plan view thereof, and

FIG. 5 is a right side elevational view, a left side elevational view being a mirror image; and,

FIG. 6 is a rear elevational view thereof. 

The ornamental design for an operation controller for electronic computers, as shown and described. 